Cassiopea Family - ngc 7635 and many other objects (Stefano Ciapetti)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 4 Cas · Bubble Nebula · IC 1470 · M 52 · NGC 7419 · NGC 7429 · NGC 7510 · NGC 7538 · NGC 7635 · NGC 7654 · PK110+01.1 · PK110-00.1 · PK112+03.1 · PK112-00.1 · Sh2-155 · Sh2-156 · Sh2-157 · Sh2-158 · Sh2-159 · Sh2-160 · Sh2-161 · Sh2-162 · Sh2-163 · Sh2-164 · Sh2-165 · Sh2-166 · The star 4Cas · VdB155

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Cassiopea Family - ngc 7635 and many other objects

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Cassiopea Family - ngc 7635 and many other objects

This image is the sum of 521 60 secs unguided subs taken on the night of the 5t of September 2021 from my home terrace. Equipments used were a Canon 70-200 F4 lens (at 100 fl) an Asi 533, an Optolong l-extreme filter, on top of an Ioptron smart eq. No darks or flat were used. Aquisition with Astroart. Stacking with DSS. Curves and gradient removal with Astroart. Image is almost unprocessed. But I liked this wat and I decided to post it.

NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575 (BD+60°2522).The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.It was discovered in 1787 by William Herschel. The star BD+60°2522 is thought to have a mass of about 44 M☉. (Wikipedia)

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Description: little bit of processing with curves and levels

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Suburban Astrophotography
ASI533MC Pro
Imagers of Italy
Camera Lens Astrophotography
Low-Cost Astrophotography
Short exposures DSO
Broadband under Bortle 7/8/9

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Status	Advanced success
Started	...
Astrometry.net job	4983220
PixInsight job	04RA0VZC9JNPE60ILWN3XCWHL7O4TJBJ
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	23h20m11s.41
RA (top/left)	22h50m32s.77
RA (top/right)	23h51m52s.70
RA (bottom/right)	23h44m42s.17
RA (bottom/left)	22h53m22s.65

Dec (center)	+62°11′25″.5
Dec (top/left)	+64°53′52″.7
Dec (top/right)	+64°32′57″.10
Dec (bottom/right)	+59°09′07″.5
Dec (bottom/left)	+59°26′22″.9

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Cassiopea Family - ngc 7635 and many other objects

Cassiopea Family - ngc 7635 and many other objects

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Cassiopea Family - ngc 7635 and many other objects

Cassiopea Family - ngc 7635 and many other objects

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Acquisition details

Description

Comments

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B

Sky plot

Histogram

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